Gunslinger: would you let Mending cantrip fix broken guns?

@lukempickles love the Gunslinger archetype, one of my players is playing one, & I wondered Would you let Mending cantrip fix broken guns? Sure, depending on the complication of the piece! 1 min casting time makes for a non-combat fix, though

— Matthew Mercer (@matthewmercer) March 23, 2017

You can download Gunslinger Archetype here:

http://bit.ly/Gunslinger_MatthewMercer